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VI. MAINTENANCE
WARNING!!!
DO NOT OPEN the cover of the UPS because there is no part that can be maintained by the
user. DO NOT TOUCH battery leads. There is high voltage even if the UPS is off. Therefore no
one should open the cover of the UPS except the service personal. Otherwise, serious injuries
may occur.
6.1 Scheduled Maintenance
Some semiconductor devices inside the UPS do not require any maintenance. Only cooling fans are moving
parts. If the environment is clean and cool enough, the planed maintenance program will be at minimum level.
Even though, periodic check and maintenance based on a well prepared documents (a good guide) will in-
crease the performance of the UPS and prevent some small faults (errors) to become unhandlable ones.
The equipment was designed to require little amount of maintenance numbers. The user should do
the following instructions.
6.2 Daily checks
Check the UPS everyday and becareful about the following:
1. Check the operator control panel. Verify that all LEDs and parameter measurements are normal and there
is no alarm message on the indicator panel.
2. Check if the device is overheated.
3. Check the cooling fans’ rotations.
4. Check if there is any change in the equipments noise level.
5. Check if there is any stoppage on the ventilation path. If so, clean the dust using a vacuum cleane.
6. Make sure that there is nothing placed on the UPS.
6.3 Weekly checks
1. Record the results on the indicator panel.
2. Measure and record voltages on each phase.
3. Measure and record currents on the output of the UPS.
4. Check batteris’ status by performing a manual battery test. Use a dry humid gland to clean the cover of
the UPS.
Record the observations if possible. Check if there is any difference with the previous records (observations).
If the last recorded values are significantly differ from previous records, please check If the load has been
changed, and if so please record the type, size, and position of this load. These information will be very valu-
able in helping the service personal in determining any probable errors.
If there is a significant change in the parameter values without any reason please immediately call the quali-
fied service personal.
